"""备份管理路由"""
from flask import render_template, request, jsonify, send_file
from app.routes.admin import admin_bp, login_required
from app.services.backup_service import BackupService


@admin_bp.route('/backup')
@login_required
def backup_page():
    """备份管理页面"""
    backups = BackupService.list_backups()
    
    stats = {
        'total_backups': len(backups),
        'total_size': sum(b['size'] for b in backups)
    }
    
    return render_template('admin/backup.html', backups=backups, stats=stats)


@admin_bp.route('/backup/create', methods=['POST'])
@login_required
def backup_create():
    """创建备份"""
    include_uploads = request.form.get('include_uploads', 'true').lower() == 'true'
    
    result, error = BackupService.create_backup(include_uploads=include_uploads)
    
    if error:
        return jsonify({'success': False, 'message': error}), 400
    
    return jsonify({
        'success': True,
        'backup': {
            'filename': result['filename'],
            'size': BackupService.format_filesize(result['size']),
            'timestamp': result['timestamp']
        }
    })


@admin_bp.route('/backup/download/<filename>')
@login_required
def backup_download(filename):
    """下载备份文件"""
    filepath = BackupService.get_backup_path(filename)
    
    import os
    if not os.path.exists(filepath):
        return jsonify({'success': False, 'message': '备份文件不存在'}), 404
    
    return send_file(
        filepath,
        as_attachment=True,
        download_name=filename
    )


@admin_bp.route('/backup/delete/<filename>', methods=['POST'])
@login_required
def backup_delete(filename):
    """删除备份文件"""
    success, error = BackupService.delete_backup(filename)
    
    if not success:
        return jsonify({'success': False, 'message': error}), 400
    
    return jsonify({'success': True})